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1 examine the network devices available to you a

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1.Examine the network devices available to you.a)Determine which device you are viewing.b)Determine whether it is an outdated technology or a current device.c)Determine whether this is the best choice for connecting devices to the network in your location.2.Which network device would you recommend to someone who needs to control surveillance camerasthat need to pan, tilt, and zoom?A: A standard switch could be used, but more likely, you might use PoE.3.What situations would be best for wired or wireless networks?A: Answers will vary, but might include using wireless networks for historic buildings that cannot beopened up to run wiring through; and wired networks are more secure, so sensitive data should besent over wired connections instead of wireless ones.CompTIA®A+®: A Comprehensive Approach (Exams 220-901 and 220-902)|95Lesson 3: Networking and Security Fundamentals|Topic BProvide examples of asmany of the networkdevices covered in thistopic as possible forstudents to examine. Ifpossible, show studentsthe wiring closet andpatch panel.For step 1c, even thoughthe information is notexplicitly included in thistopic, this is designed tostretch students, and getthem to think beyond therote data.
TOPIC CCommon Network ServicesSo far in this lesson, you have identified common network types and the components that makethem functional. Now it's time to examine what this network can provide to you and other users. Inthis topic, you will identify the properties and purposes of services provided over a network.Server RolesIn most organizations, the network will have several servers, each taking on a different role. Insmaller networks and test environments, one server might perform several roles.The following table includes some of the common server roles you are likely to encounter.Server RoleDescriptionWeb serverAweb serverprovides access to personal, corporate, or education website content.This service is provided primarily to external users, such as customers orstudents, who access the Web services from the Internet. Web servers typicallyprovide Web services to external users, although intranet servers can provideWeb services to internal users.File serverFile serversare computers that store the programs and data files intended to beshared by multiple users. Many file servers use high-speed LAN or WAN linksto keep data moving at optimal rates. Simply put, a file server acts like a remotedisk drive.A file server might also be combined with a print server. In this case, it providesaccess to shared files, such as documents, pictures, spreadsheets, and graphics,as well as access to laser and inkjet printers.Print serverAprint serverenables many network users to share the common printers. Theprinters might be directly attached to the network or attached to the server.

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